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Endotoxin Reduction in Cotton Fibers: Effect of Flash Heating on Endotoxin Content, Fiber Physical Properties, and ProcessabilityUSDA, ARS, Southern Regional Research Center, New Orleans, Louisiana 70179, U.S.A.
USDA, ARS, Southern Regional Research Center, New Orleans, Louisiana 70179, U.S.A. Raw cotton fiber was heated by three processes ( metal plates, forced draft laboratory oven, and gas-fired pilot plant dryer) to compare their effect on endotoxin content of the fiber. To achieve about 90% reduction in endotoxin content, it was necessary to treat the cotton between the metal plates for 120 seconds at 215°C (419°F), in the forced draft oven for 60 seconds at 250°C (482°F), or in the pilot plant dryer for 15- 20 seconds at 250°-255°C (500°F). Fabric could be knit from heated cotton despite reductions in fiber bundle tenacity and elongation and yarn tenacity caused by the heat treatment. Heat-induced discoloration could be eliminated by a desize / scour / bleach treatment of fabric knit from heated cotton.
Textile Research Journal, Vol. 63, No. 10,
595-603 (1993) |
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